2025 CPT code 84432
(Active) Effective Date: N/A Revision Date: N/A Laboratory - Chemistry Procedures Pathology and Laboratory Procedures Feed
This CPT code represents a laboratory test for thyroglobulin, a protein produced by the thyroid gland.
Modifiers may apply depending on the circumstances of service. Refer to CPT guidelines and payer-specific instructions for the appropriate use of modifiers.
Medical necessity for thyroglobulin testing is established based on clinical indications such as suspected thyroid disorders (hyperthyroidism, hypothyroidism), monitoring of thyroid cancer, or evaluation of thyroid nodules.The test helps in diagnosis, treatment planning, and monitoring of response to treatment. Payer specific guidelines should be considered.
The clinical responsibility lies with the laboratory analyst who performs the technical aspects of the thyroglobulin test, including specimen analysis and interpretation of results.
In simple words: This lab test measures the amount of thyroglobulin in your blood. Thyroglobulin is a protein made only by your thyroid gland.High levels may suggest problems with your thyroid, like cancer or other conditions. Doctors often use this test to monitor thyroid health and cancer treatment.
CPT code 84432 refers to the laboratory analysis of thyroglobulin in a patient's serum or plasma sample.Thyroglobulin is a protein exclusively produced by the thyroid gland, serving as a precursor to thyroid hormones.The test typically employs methods such as enzyme-linked immunosorbent assay (ELISA), immunoradiometric assay, or electrochemiluminescence assay to quantitatively measure thyroglobulin levels. Elevated thyroglobulin levels may indicate thyroid abnormalities such as cancer (papillary and follicular), Graves' disease, or hyperthyroidism.Monitoring thyroglobulin levels post-treatment for thyroid cancer is crucial for recurrence detection.
Example 1: A patient with a history of papillary thyroid cancer undergoes post-surgical thyroglobulin testing to monitor for recurrence.The elevated thyroglobulin level prompts further investigation., A patient presents with symptoms suggestive of hyperthyroidism.Thyroglobulin testing is ordered to assess thyroid function and help in the differential diagnosis., A patient is being monitored for Graves' disease. Serial thyroglobulin measurements are used to track the effectiveness of treatment and detect any potential relapse.
* Patient demographics and medical record number.* Physician's order for the thyroglobulin test.* Specimen collection and processing information (date, time, source).* Test results, including the thyroglobulin level and units of measurement.* Relevant clinical information from the patient's medical history and physical examination.* Any relevant prior test results (for comparison).
** The reported value should be the result of a quantitative measurement.If the analyte was measured in multiple specimens, each result should be reported separately.Clinical information derived from other test results is not separately reportable unless specifically requested by the ordering physician.
- Revenue Code: T1H (LAB TESTS - OTHER (NON-MEDICARE FEE SCHEDULE))
- RVU: Information not available in provided source. Consult official fee schedules and relative value unit databases for current payment information.
- Global Days: Not applicable; this is a laboratory test, not a surgical procedure.
- Payment Status: Active
- Modifier TC rule: Not applicable; this is a complete laboratory test code.
- Fee Schedule: Information not available in provided source. Consult historical fee schedules and databases.
- Specialties:Endocrinology, Oncology, Pathology
- Place of Service:Office, Hospital (Inpatient or Outpatient), Clinical Laboratory